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Telesystems Conference, 1993. 'Commercial Applications and Dual-Use Technology', Conference Proceedings., National

Date 16-17 June 1993

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  • Proceedings of 1993 IEEE National Telesystems Conference

    Publication Year: 1993
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    Freely Available from IEEE
  • Applications of the global positioning system to intelligent vehicle highway systems

    Publication Year: 1993, Page(s):139 - 141
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    The Intelligent Vehicle Highway System (IVHS) program is aimed at reducing traffic congestion and motor vehicle emissions, and at improving highway safety, by applying advanced communications and computer technologies. The author examines the user requirements and system functions contemplated for IVHS, and discusses the surveillance and navigation services that are required to support them. Compa... View full abstract»

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  • ATMS 2000: hybrid automation or a lights out traffic management center?

    Publication Year: 1993, Page(s):37 - 42
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    Because of rapid advances in information and automation technology, traffic management center (TMC) design is in a period of rapid evolution. Larger numbers of more capable traffic and environmental sensors are being fielded. Data fusion and information processing equipment are beginning to exploit this new quantity and quality of information. Automation of routine tasks may help to moderate peaks... View full abstract»

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  • A versatile, broadband, low-profile antenna

    Publication Year: 1993, Page(s):227 - 231
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The recently invented spiral-mode microstrip (SMM) antenna is finding application in various commercial systems as well as various military systems in addition to the military application for which it was developed. The salient features of this antenna are reviewed with respect to those applications for which interest in the antenna has been strongest. The salient features of the new antenna are b... View full abstract»

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  • Optical beam forming and steering for phased-array antenna

    Publication Year: 1993, Page(s):7 - 12
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    Application of photonics in beam forming and steering for phased-array antennas is addressed in this paper. The feasibility of photonics in space communications systems centers around the basic issues such as the need for photonics and derived benefits, overall performance, and complexity and cost of implementation. Several optical beam forming and steering payloads are assessed for their capabili... View full abstract»

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  • Velocity matched filtering/coherent integration of ultrawideband pulse trains

    Publication Year: 1993, Page(s):191 - 195
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    The development of optically activated semiconductor switches has advanced to the point where they are ready for implementation in radar systems. Extended detection range is possible when the switch is operated at high pulse repetition frequencies combined with integration of multiple pulse returns. Coherent integration of the returns from moving targets is described, based on real signal processi... View full abstract»

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  • On adaptive arrays in mobile communication

    Publication Year: 1993, Page(s):55 - 58
    Cited by:  Papers (3)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    The author studies the use of adaptive arrays in mobile communication for increasing channel capacity as well as reducing co-channel interference. Antenna arrays may be used at the base station and/or at the mobile unit. A mathematical model for the received signal is presented and discussed in the context of frequency division multiple access (FDMA), time division multiple access (TDMA) and code ... View full abstract»

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  • A new CFAR processor in nonhomogeneous background and multiple target situations

    Publication Year: 1993, Page(s):221 - 225
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The authors consider the problem of CFAR (constant false-alarm rate) detection in nonhomogeneous clutter and in multiple target situations. The data discriminator (DD) CFAR detector which performs two passes over the data, is proposed and analyzed. In the first pass, the algorithm senses possible interfering targets, and in the second pass the algorithm selects those samples which are identically ... View full abstract»

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  • INTELSAT VIII; INTELSAT's next generation satellite

    Publication Year: 1993
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (56 KB)

    Summary form only given. The authors present a general overview of the design and key features of Intelsat's next-generation satellite, INTELSAT VIII. INTELSAT VIII will provide both C-band and Ku-band services through a complex antenna system. The 3700-kg spacecraft is based on the GE Series 7000 platform currently in production and is expected to provide over 13 years of in-orbit operational ser... View full abstract»

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  • High resolution MMW seeker fuse processing

    Publication Year: 1993, Page(s):175 - 179
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    The authors describe a new signal processing technique for phased arrays that can be used in near-field target imaging. This processing technique is useful to millimeter wave seekers employing planar phased arrays as a new approach to performing warhead fusing. The array operation and signal processing are similar to synthetic sampled aperture radar (SSAMAR). Through a coherent integration of all ... View full abstract»

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  • Microwave optics for space and ground communications

    Publication Year: 1993, Page(s):1 - 6
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    Fiber optic and free space laser communications operating in microwave and millimeter-wave (M/MM) frequencies provide numerous advantages. Various M/MMW fiber optic and lasercom system applications, including satellite communications, phased-arrays, and antenna remotings for cellular/wireless/personal communications are described. Commercially available and state-of-the-art key components required... View full abstract»

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  • A GPS solution to precision approach and landing (even in the presence of anti-spoofing)

    Publication Year: 1993
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    Summary form only given. The ability to track quality dual-frequency P-code (code and phase) observables has been responsible for many exciting developments in global positioning system (GPS) geodesy and precision navigation. However, civilian users were confronted with the fact that P-code quality tracking will essentially disappear when the government enacts full time anti-spoofing (AS). A propr... View full abstract»

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  • Multiwavelength photonic communications

    Publication Year: 1993, Page(s):15 - 20
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    The integration of multiwavelength technology into practical fiber optic communication systems is gradually becoming a reality because the required important wavelength tunable components are readily available. The author reviews several important multiwavelength system applications and briefly describes the key components, both commercially available and the state-of-the-art, for those systems. T... View full abstract»

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  • Pseudo windowing for synthetic sampled aperture radar target detection

    Publication Year: 1993, Page(s):185 - 189
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The authors introduce a significant modification to the coherent integration algorithm of synthetic sampled aperture radar (SSAMAR) processing to achieve Hamming-like or cosine to the fourth-like tapering. Only pseudo Hamming or cosine to the fourth tapering is possible because the coefficients of the coherently integrated SSAMAR returns are integers. In other words, the coefficients of the return... View full abstract»

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  • Modern cable TV network, the ideal platform for PCS

    Publication Year: 1993, Page(s):59 - 64
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    Modern cable TV distribution plants offer many advantages in providing personal communication services (PCS) to the public. The author reviews the evolution of cable TV architectures from an all coaxial cable tree and branch to a fiber-rich double star network. The cable TV industry has invested considerable capital and resources to improve the reliability and the quality of their distribution pla... View full abstract»

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  • Autonomous precision approach and landing system APALS

    Publication Year: 1993, Page(s):101 - 107
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    The autonomous precision approach and landing system (APALS) system is a precision approach and landing system designed to enable low-visibility landings at many more airports than is now possible. It is an autonomous navigation system which uses standard avionics equipment to determine the aircraft position and altitude with respect to unique terrain features over which the aircraft flies. The pr... View full abstract»

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  • Precision approach radar (PAR)-remote operation feasibility study

    Publication Year: 1993, Page(s):197 - 201
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    It has been determined that it is feasible to have remote displays and controls of the AN/FPN-63 precision approach radar (PAR) over a narrow bandwidth communication link. The system design maintains the functional requirements of the current radar as required by the applicable air traffic control documents. After processing, one or two dedicated 56 kb/s telephone lines are able to transmit the 4-... View full abstract»

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  • On the processing gain and pulse compression ratio of frequency hopping spread spectrum waveforms

    Publication Year: 1993, Page(s):215 - 219
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    The authors consider the pulse compression ratio and processing gain of frequency hopping spread spectrum waveforms. The importance of the frequency separation-subpulse width product is studied. Typical autocorrelation functions for coherent and noncoherent frequency hopping systems are given View full abstract»

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  • Characterization of the PACSAT file broadcast system

    Publication Year: 1993, Page(s):71 - 79
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    Since January 1990, amateur radio operators around the world have had the opportunity to use several low-Earth-orbit satellites providing store-and-forward communications services. The author focuses on the broadcast mode of operation as implemented on the PACSAT-1 and UoSAT-5 amateur radio satellites in 1992. The evolutionary process leading to the broadcast mode of operation is given along with ... View full abstract»

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  • Transportable orbital tracking, telemetry and command system

    Publication Year: 1993, Page(s):241 - 249
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    NASA/Goddard Space Flight Center has implemented an automated ground-based telemetry, command, and Doppler system. Its function is to support the low-earth-orbiting satellite and sounding rocket programs. This fully transportable system can be configured with the capability to provide unmanned satellite support for seven days or operator augmented automated sounding rocket launch and tracking supp... View full abstract»

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  • The ARINC veracious differential reference station concept and status

    Publication Year: 1993, Page(s):143 - 152
    Cited by:  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    An important aspect that must be considered in the design of any differential global positioning system (DGPS) is the degree of integrity inherent in the differential corrections provided by that system. Currently available DPGS systems provide only partial integrity due to one or more of the following reasons: they are restricted to single operating mode integrity, they are capable of failure det... View full abstract»

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  • INTELSAT VI reboost video presentation

    Publication Year: 1993, Page(s):65 - 68
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    A presentation was made using live video captured during the mission to reboost INTELSAT VI F-3, which was stranded in low Earth orbit from March 14, 1990 to May 14, 1992. The presentation encompassed the critical phases of the mission: using the space transportation system (shuttle) to bring a new rocket motor to the stranded satellite, firing the motor which placed the satellite in an elliptical... View full abstract»

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  • Influence of various PCS spectrum allocation schemes on the ability to share spectrum with incumbent microwave users in the 1850-1990 MHz band

    Publication Year: 1993, Page(s):45 - 53
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    The success of personal communication services (PCS) rests in the ability to share spectrum with incumbent microwave users in the 1850-1990-MHz band. Spectrum allocations from 20 MHz to 40 MHz per PCS licensee are being considered by the FCC. While it may be possible to make some spectrum available by negotiating relocation agreements with certain of the microwave users in a given MSA, local gover... View full abstract»

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  • FLAPS reflector antennas

    Publication Year: 1993, Page(s):233 - 238
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    A flat parabolic surface (FLAPS) reflector is a thin (planar or conformal) surface consisting of an array of elements, each functioning as a radiator and phase shifter. Unlike a conventional planar array, however, the elements on the FLAPS surface are spatially fed using a feed assembly, as in a conventional reflector system. This results in an antenna technology that offers the advantages of both... View full abstract»

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  • MMW technology for enhanced situation awareness/enhanced vision systems

    Publication Year: 1993, Page(s):97 - 99
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    Millimeter wave (MMW) radar systems are now demonstrating the ability to image airport environments in fog. The authors discuss the use of MMW radar technology to provide pilots with enhanced vision and enhanced situation awareness. One of the first steps in providing an autonomous aircraft is the Enhanced Vision System (EVS). This system consists of a heads-up display (HUD) and an imaging MMW rad... View full abstract»

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